641514631042 has 8 divisors (see below), whose sum is σ = 963894666636. Its totient is φ = 320216408832.

The previous prime is 641514630947. The next prime is 641514631061. The reversal of 641514631042 is 240136415146.

It can be written as a sum of positive squares in 2 ways, for example, as 604134662121 + 37379968921 = 777261^2 + 193339^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 641514630992 and 641514631010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270451863 + ... + 270454234.

Almost surely, 2^641514631042 is an apocalyptic number.

641514631042 is a deficient number, since it is larger than the sum of its proper divisors (322380035594).

641514631042 is a wasteful number, since it uses less digits than its factorization.

641514631042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540906692.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 641514631042 in words is "six hundred forty-one billion, five hundred fourteen million, six hundred thirty-one thousand, forty-two".